Saw-setting machine



(No Model.) 2 Sheets-Sheet 1.

A. LOGAN. SAW SETTING MACHINE.

No. 396,823. Patented Jan. 29, 1889.

2 Sheets-Sheet 2 (No Model.)

, A. LOGAN. SAW SETTING MAGHINE.

Patent ed'J an. 29, 1889.

V////////////////// m/ v UNITED STATES ALEXANDER LOGAN, OE MONTEREY, CALIFORNIA.

SAW-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 396,823, dated January 29, 1889. Application filed November 10, 1888. Serial No. 290,479. (No model.)

To all whom it may concern."

Be it known that I, ALEXANDER LOGAN, of Monterey, Monterey county, State of California, have invented an Improvement in Sawbetting lilachines; and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to the class of ma chines for setting saws; and my invention consists in the novel construction and arrangement of the parts and their several adjustments, as I shall hereinafter fully describe by reference to the accompanying drawings, in which- Figure 1 is a perspective view of my sawsetting machine. Fi g. 2 is a longitudinal vertical section of same, the set-punch seat and hammer being lin'oken off. Fig. 3 is a vertical section through one of the limiting-rollers N and its adjustable connections and the adjustable connections of the bracket 0. This figure also shows the set-punch seat in section and a longitudinal section of the stem a and carriage K. Figs. at, 5, and G are elevations of the different cam pairs. Fig. 7 is a view of the end of shelf R.

A is the bed-plate of the machine, having a cross guide-rib, a.

B is the anvil, fitted to the cross guide rib at about its center, and having a backward inclination to allow for the set of the teeth. The anvil has a stem, b, which is adjustably connected with a bracket, 1:, the outer end of which carries a set-punch, C. The connection between the stem of the anvil and the bracket is an adjustable one, and is formed by the set-screw I), connected with the stem of the anvil, passing through an elongated slot c, in the bracket 0, and by this connection the anvil may be set forward or back independent of the sctpunch.

The set-punch bracket has a base-plate, which is mounted upon the bed-plate A, and is adapted to have an adjustable movement forward and back by means of set-screws 0 passing down into the bed-plate through elon" gated slots 0' in the said base-plate. It will, therefore, be seen that by loosening the setscrews 0 both the set-punch and the anvil can be moved forward or back to suitable posi tion, while by loosening the set-screw b the anvil itself may have an. independent adjustment, as heretofore described.

The set punch O passes downwardly through the end of the bracket 0, and is controlled by a spring, 0 within the bracketsocket, whereby, after being forced downwardly, it is thrown up by the spring, and said punch may be readily removed from its seat by removing a small thumb-nut, 0, en- '60 circling its top and screwing into the bracket-socket.

D is a hammer adapted to strike the setpunch. This hammer has aspring-handle, d, the end of which is bent upon itself, and is secured by a set-screw, cl, to the bed-plate A. A guide, d embraces the handle of the hammer and properly directs it. Secured upon the handle of the hammer by a setscrew, e, is a rod, E, which is adapted to be moved back and forth on the hammcr-handle. Mounted in suitable bearings under the bed plate A is a power-shaft, F, operated by a crank and carryii'lg near its inner end the cams G. These cams are firmly fixed to the 7 5 shafts and are arranged in pairs, the individual member of each pair having its camsurfaces reversed. One pair of the series has a certain number of camssay four; the next pair has a different numbcrsay three; and the next pair has two mun-surfaces. The rod E extends downwardly through the bedplate A in an elongated slot, a therein, which allows it to move on the handle above, and the lower end of said rod lies in contact with the cams below. By moving the rod it comes in contact with any one of the cams, as may be desired.

Extending upwardlythrough the bedplate is a shaft, H, the lower end of which has a beveled gear, h, which meshes with a bevelgear,f, on the shaft F. 011 the upper end of this shaft is mounted a conical shaped toothed wheel, Q, which is adapted to be rotated by said shaft, and can still have a movement up and down thereon, and can be readily removed therefrom for the substitutiol'i of any wheel having coarser teeth.

I is the supporting-plate for the saw-blade. This plate is hinged at 't' to the forward edge I00 of the anvil, and has a hollow stem or shank,

1 extending in an opposite direction, and

seated in a groove, a, of the bed plate. Through the end of the bed-plate from below passes upwardly a set-screw, J, the top of which engages a grooved lug, 1 under the stem z" of the supporting-plate I, whereby said stem may move longitudinally with the adjustment of the anvil to which its plate is attached at the same time that said stem may be raised up or down by turning the screw J, whereby the inclination of the saw-supporting plate I may be varied to properly support the saw.

K is a sliding carriage mounted upon a track on the top of the stem 2 and having a lug, it, on its forward end passing down through the slot 2 in said stem and engaging a spring, 7c, within the stem, said spring acting to throw and hold the sliding carriage forward. Mounted and adapted to slide on top of said carriage is a bearin g-plate, L, hav

ing mounted in it horizontally a setting-up wheel, M. A set-screw, 1, serves as the axis for said wheel, and its lower end passes down and screws into a nut, l, fitted and adapted to slide in a groove, 7. in the sliding carriage, and serves to hold the wheel-plate at a suitable point on the sliding carriage, and when loosened permits it to be moved forward or back thereon.

N are limiting-rollers, one on each side of the anvil and punch, said rollers being mounted on arms or, the rear ends of which are provided with elongated slots 11, through which the set-screws a" pass, said screws serving to hold the arms and allowing the rollers to be adjusted forward or back to the proper place.

0 is a bearing-arm mounted upon a setserew, 0, which passes through an elongated slot, o,jin its end and screws into the bracket 0, so that the said arm may be adjusted forward orback. This arm carries a roller, P, mounted on the lower end of the stem 1), which passes upwardly through a socket in the arm, and is held in position by means of a set-screw, 19 The roller P has a flange, p, on one side, and said roller occupies a position directly over the saw-supporting plate I.

Risa shelf having at its end an iron, 0', provided with a slot, 0-, adapting it to fit the lugs r on the sides of the main frame A.

The operation of the machine is as follows: The saw is laid upon the extended shelf R and its teeth are passed over the anvil and under the set-punch, the blade being supported by the plate I and held down by the roller P bearing on its top. The back edge of the blade is engaged by the setting-up wheel M, which, under the influence of its spring holds said blade up to place, while it is limited by the side rollers, N, acting against its teeth. The crank on the power-shaft is now operated, whereby the cams G, acting on the rod E, cause the hammerD to deliver a blow on the top of the said punch, which, acting on the tooth, sets it properly. The teeth are engaged by the conical-toothed wheel Q, which, deriving a rotary motion through the gears from the power-shaft F below, feeds the saw forward, so that its teeth are operatedupon. The blade, moving in one direction, has of course only alternate teeth set; but when this is finished the extended shelf R is removed to the other side and the saw reversed and put through the other way. The rod E is moved along on the hammer-handle, so as to engage the reverse cam of the pair then operating it, and the shaft F is rotated in the opposite d i rection, whereby the toothed wheel Q feeds the saw backward and the other teeth are set. The revolutions of the feedwheel Q and the cams G are timed so that the feed of the saw shall take place in accordance with the blows of the hammer. The vertical adjustment of the conical feed-pulley Q provides for its engagement with saws having a different number of teeth to the inch, the conical shape eltecting this, because u ear its top the teeth are closer together, lying in converging planes, and by setting it at diflj'erent points it accommodates different numbers of teeth. New, for saws too large for this particular wheel, I have other toothed wheels having coarser teeth and adapted to be substituted for the smaller teed-wheel, and when the larger toothed wheels are used I move the rod E along on the hammer-handle, so as to be engaged by the pair of cams having a less number of cam-surfaces, so that the stroke of the hammer and the feed of the saw will still be properly timed. The anvil B maybe properly adjusted to suit the teeth of the saw, and the set-punch C may likewise be adjusted. The supporting-plate I for the saw has its adjustment through the screw J acting on its stem, and the setting-up wheel and limitingrollers are adjusted, as heretofore described, to suit any size of saw-blade. The spring adjustment and control of the setting-up wheel enables the saw-blade to pass through and be acted upon all the time, no matter what its width maybe, while the separate adjustment of the wheel itself on the sliding carriage sets .it properly in the first instance.

The flanged roller 1 has, in addition to its holding-down function, a particular function and use in the operation of the machine when set-tin g small blades like those of band-saws. These blades are so narrow that the main setting-up wheel does not act upon them; but the flange 19 upon the roller P engages the back edge of a band or narrow saw and holds it up to its place. This roller is adjustable IIO up or down by means of its own sliding stem and Forward and back by the slotted arm which carries it, so that the machine will operate to set the teeth. of any sized blade, no matter how small.

Havin thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a saw-setting machine and in combination with the set-punch and anvil, the hammer having the spring-handle, the rod E, adjustable on the handle, and rotating cams acting on the rod to raise and relieve the hannner, whereby it delivers its blow, substantially as herein described.

2. In a saw-setting machine and in combination with the set-punch and anvil, the hammer having the spriilg-handle, the rod E, adjustable on the handle, and the series of .ro tating cams acting on the rod to effect the blow oi. the hammer, said. cams having each a different number of acti ng-su rt'aces, whereby the number of blows in a given time is varicifl by the adjusti'nent ot' the rod from one cam to another, substantially as herein described.

23. In a saw-settin g machine, a hammerhaving a spring-handle, an adjustable rod thereon, set-puncl1,aml anvil, in combination with a rotary power-shaft having cams engaging said rod for operating the hammer, and a toothed wheel rotated by the power-shaft and engaging the teeth of the saw to effect its feed, said. wheel having a conical shape, whereby its teeth are formed in converging planes to adapt it for different saws, substantially as herein described.

at. In a saw-setting machine, ahammerhaving a spring-handle, an adjustable rod thereon, and a set-punch and anvil, in combination with a rotary power-shaft having cams engaging said rod and operating the hammer, and a toothed wheel rotated by the shaft mounted and adapted to be vertically moved and hav inga conical shape, its teeth lying in converging planes, said wheel engaging the teeth of the saw for feeding it, and adapted by its vertical movement to receive and feed different saws, substantially as herein dcscribed.

5. In a saw-setting machine, a hammer, a set-punch, and an anvil, in combination with the rotary toothed. wheel for engaging the teeth of the saw and ,t'eeding it, the springhandle of the hammer, the adjustable rod E thereon, the rotary pow n=shatt and powereonnections theretirom to operate the toothed .t'eed-whecl, and the pair of reversed cams for actin on the rod altt-n-nately as the rotation of the shaft is reversed, substantially as herein described.

6. In a saw-setting maehiim, a hannner, setpunch, and anvil, in cmnbination with the retary toothed wheel t'or feeding the saw, the spring-handle of the hammer, the adjustable rod E thereon, the rotary power-shali't, the vertical sh aft carrying the toothed li'eed-wh eel, and the gears for operating it From the powershaft, and the pair of reversed cams for acting on the rod alternately as the rotation of the shaft is reversed, substantially as herein described.

7. In a saw-setting machine, the anvil having a stem adapted to be moved forward or back and set by a screw, whereby the anvil is adjusted, substantially as herein described.

8. In a saw-setting machine, the set-punch and the adjustable bracket by which it is carried, in combination with the anvil having a stem, the set-screw connected. with said stem, and the slot in the set-punch bracket through which theset-serew passes, whereby the anvil is connected with the bracket and maybe ad justed both with it and imlepcmlently, substantiall y as herein described.

5). In a saw-setting machine, the adjustable anvil, in combination with the blade-supporting plate I, hinged or pivoted to the anvil, the stem of said plate, and the screw engaging the stem by a sliding (J01lllCl'l()ll,\\'ll6l'6l)y the plate may be moved back and forth with the anvil and have its inclination varied, substantially as herein described.

10. In a saw-setting machine, the combination of the sliding carriage K, the independently-sliding beariugiilate It on, the carriage,

the setting-up wheel carried by said plate for engaging theback of the saw-blade, the spring acting contimiously on the carriage to hold the wheel up with its work, and the set-screw and nut for primarily adjusti'n the bearingplate on the carriage, substantially as herein described.

11. In a saw-setting machine, the bladesupporting plate I, having a slotted hollow stem, in combinatimi with the sliding carriage mounted on said stem,the spring within the stem and acting on the carriage, and the setting-up wheel on the czn'riage, substantially as herein described.

12. In a saw-settii'lg machine, the bladesupporting plat-e having a slotted hollow stem, in combination with the sliding carriage mounted on said stem, the spring within the stem and acting on the carriage, the indepennlently-slii'ling bearing-plate on the carriage, the setting-up wheel carried by the plate, and the set-screw and nut for primarily adjusting the plate and wheel on the carria; e, substantially as herein described.

13. In a saw-setting machine, the limitingrollers acting against the teeth of the saw and having slotted arms with m-screws fol-adjusting them, substantially as herein described.

It. In a saw-setting machine, the springcont-rolled setting-up wheel acting against the back of the saw, in combination with the adjustable limiting-rollers acting against its teeth, substantially as herein described.

In a saw-setting machine, the combinati on of the set-pun oh, the anvil, and the flanged roller 1) ari n g on. top of and against the back. of the saw, substantially as herein described.

16. In a saw-setting machine, the bracket and the set-punch carried thereby, and the anvil carried by said bracket, in combination with the slotted bearing-arm carried by and adjustable on the bracket, and the flanged roller having a stem carried by the bearingarm, substantially as herein described.

17. In a saw-setti n g m achin e, the adjustable bracket and the set-punch carried thereby, In Witness whereof I have hereunto set'my and the adjustable anvil carried by said hand. 1 bracket, in combination with the slotted bearing-arm carried by and zuljustable 0n the ALEXANDER LOGAN. bracket, and the flanged roller having it stem carried by and vertimtlly mljusmble in the \Yiinesses:

bearing-arm, substantially as herein de- PAUL E.HERR,

scribed. A. T. MAULDIN. 

